Chinook Bend Levee Removal 06
#07-MPR-320 #07-MPR-320
Organization Snohomish Basin Lead Entity
Sponsor King County Department of Natural Resources and Parks
Status Completed
Schedule Start Date: 2/1/2007 End Date: 10/31/2012
Category Category: Restoration
DESCRIPTION
King County restored floodplain habitat along the Snoqualmie River by removing a levee that prevented the river from accessing its floodplain on the Chinook Bend Natural Area. The county-owned property consists of 59 acres entirely within the 100-year floodplain. This project removed 1700 feet of levee and bank armoring and an additional 1300 feet of revetment to allow the river to access its floodplain at much lower flows. The material was disposed of off-site or used for farm pads in the valley. The disturbed area was graded to approximate historic bank conditions. Disturbed soils were amended and stabilized to reduce the potential for erosion by hydroseeding with native species and planting native trees, predominantly cottonwood and alder. Design and permitting of the levee removal project took place in 2007 and the first half of 2008. Project construction was broken into 2 phases. The first phase of construction (in 2008) included placement of large diameter cottonwood boles in strategic locations in the floodplain to create areas that slow flow and resist deep scour. Phase 1 is intended to prevent excessive channel widening, which can be a risk in altered floodplain settings. Additionally, approximately 50 pieces of large wood were installed to expedite the natural recruitment of wood. The second phase of the project removed the revetments and levees in summer 2009 and 2011. The project is expected to restore rearing habitat in close proximity to productive spawning habitat and along the outmigration corridor for nearly the entire population of the Snoqualmie run of Snohomish Fall Chinook. The WRIA 7 Chinook conservation plan calls for removal of levees and other obstructions that hinder the formation of off channel rearing habitat. Implementation of this project will be a significant step toward achieving the Snohomish River Basin Salmon Conservation Plan goal of restoring 80 acres of off channel habitat in the highest priority areas of the Snoqualmie watershed.
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FUNDING SOURCES
FUNDING ENTRIES FROM GRANT PROJECT AGREEMENT
TypeDateFunding OrgFunding ProgramMatchAmount
Requested09/18/2006King County Department of Natural Resources and ParksMatch$335,128.00
Requested09/18/2006Recreation and Conservation Office (RCO)Salmon State Projects$365,000.00
Allocated03/16/2009King County Department of Natural Resources and ParksMatch$350,128.00
Allocated03/16/2009Recreation and Conservation Office (RCO)Salmon Federal Projects$539,340.00
Spent10/31/2012King County Department of Natural Resources and ParksMatch-$350,128.00
Spent10/31/2012Recreation and Conservation Office (RCO)Salmon Federal Projects-$539,340.00
Grant Project Agreement Totals Proposed Requested Allocated Spent Balance
$889,468.00 $700,128.00 $889,468.00 $889,468.00 $0.00
OTHER FUNDING (Funding that is NOT in a grant project agreement)
TypeDateFunding OrgFunding ProgramMatchAmount
Other Funding Totals Proposed Requested Allocated Spent Balance
Grand Totals Proposed Requested Allocated Spent Balance
PRIMARY SPONSOR
PROJECT CONTACT
ALT PROJECT CONTACT
PROJECT MANAGER
PHOTOS

 
LOCATION
Chinook-Pop (ESU):Chinook-Puget Sound, Snoqualmie River, Threatened
Chum-Pop (ESU):Chum-Puget Sound/Strait of Georgia, Not Warranted
Coho-Pop (ESU):Coho-Puget Sound/Strait of Georgia, Species of Concern
County:King
HUC12:Harris Creek-Snoqualmie River (171100100601)
HUC8:Snoqualmie (17110010)
Lead Entity Area:Snohomish Basin
Legislative District:45
Pink-Pop (ESU):Pink-Odd Year, Not Warranted
Pink2-Pop (ESU):Pink-Even Year, Not Warranted
Puget Sound Action Areas:Whidbey Island
Salmon Recovery Regions:Puget Sound
Sections:09
Snohomish Strategy Group:Mainstem-primary restoration
Snohomish Subbasins:Mid-Mainstem Snoqualmie
Steelhead-Pop (ESU):Steelhead-Puget Sound, Snoqualmie River, Threatened
Township:T25NR07E
Watershed Administrative Unit:Harris Creek
WRIA:Snohomish
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  APPLICATION FINAL 
RESTORATION METRICS
Miles of Stream and/or Shoreline Treated or Protected (C.0.b)
0.60mi1.00mi
Instream Habitat Project    
Total Miles Of Instream Habitat Treated (C.4.b)
0.00mi0.37mi
 Channel reconfiguration and connectivity (C.4.c.1)    
Acres Of Channel/Off-Channel Connected Or Added (C.4.c.5)
59.00acres
Instream Pools Created/Added (C.4.c.6)
0.00
Miles of Off-Channel Stream Created or Connected (C.4.c.4)
0.00mi
Miles of Stream Treated for channel reconfiguration and connectivity (C.4.c.3)
1.00mi
Riparian Habitat Project    
*Total Riparian Acres Treated (C.5.b.2)
0.90acres
*Total Riparian Miles Streambank Treated (C.5.b.1)
0.75mi
 Planting (C.5.c.1)    
Acres Planted in riparian (C.5.c.3)
1.70acres
ADDITIONAL INFORMATION
NOTES

Updated and linked to PRISM project 06-2250; Confirmed by
Morgan Ruff; Opt-ed in; Updated expenses to match the amount allocated by RCO
and sponsor match. 4/27/2018 CK

Design element included $100,000 in match funding.